公开(公告)号：JP2010107600A

公开(公告)日：2010-05-13

申请号：JP2008277513

申请日：2008-10-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G15/08 ,  G03G9/0804 ,  G03G9/0825

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a resin-layer coated toner having good coating quality in a high yield by stably discharging a gasified liquid to the outside of a powder passage to maintain a fluidized state of toner material particles and coating material particles, in the toner manufacturing method including a step for spraying the liquid plasticizing the toner material particles and the coating material particles toward these particles in a fluidized state from a spraying means by a carrier gas and gasifying the liquid. SOLUTION: The method for manufacturing the resin-layer coated toner uses a rotary stirring apparatus 201 having a circulating means, a temperature regulating means, the spraying means 203, and a discharging means. The carrier gas is circulated in the powder passage 250, and the carrier gas including the gasified liquid is continuously discharged to the outside of the power passage through the discharging means. A pressure P 1 in the powder passage and a pressure P 0 outside the powder passage satisfy the following expression (1): 0 atm 1 -P 0 )≤0.3 atm (1). COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过将气化的液体稳定地排放到粉末通道的外部以保持调色剂材料颗粒的流化状态来提供以高产率制造具有良好涂层质量的树脂层涂布的调色剂的方法 和涂料材料颗粒，在该调色剂制造方法中，包括用于通过载气从喷涂装置喷射将调色剂材料颗粒和涂料材料颗粒以流化状态朝向这些颗粒增塑的液体喷雾并使气体气化的步骤。 解决方案：用于制造树脂层涂覆的调色剂的方法使用具有循环装置，温度调节装置，喷涂装置203和排出装置的旋转搅拌装置201。 载气在粉末通道250中循环，并且包括气化液体的载气通过排出装置连续排出到动力通道的外部。 粉末通道中的压力P 1 和粉末通道外的压力P 0 满足以下表达式（1）：0 atm <（P < SB> -P 0 ）≤0.3atm（1）。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010066610A

公开(公告)日：2010-03-25

申请号：JP2008233978

申请日：2008-09-11

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/10

CPC classification number: G03G9/09392 ,  G03G9/0808 ,  G03G9/081 ,  G03G9/0825 ,  G03G9/09733

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a toner by which the adhesion of toner base particles to an inner wall of an apparatus and the generation of an aggregate are suppressed, so that a toner in which a toner base particle surface is uniformly coated with resin fine particles can be produced in a high yield. SOLUTION: The method for producing a toner uses a rotation stirring device provided with at least a circulation means, a temperature regulating means and a spray means comprising a two-fluid nozzle 230. The two-fluid nozzle 230 includes a liquid tube 231 and an air tube 232, wherein the liquid tube 231 is coaxially inserted in the air tube 232, and the liquid tube 231 and the air tube 232 are at least partly fixed so that the centers of the tubes are not dislocated. In a powder passage, the temperature is regulated, and while circulating toner base particles and resin fine particles, a liquid for assisting adhesion is sprayed at a fixed velocity from the two-fluid nozzle 230 to form a film on a toner base particle surface. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种调色剂基底颗粒的调色剂的制造方法，通过该方法可以抑制调色剂基础颗粒与装置的内壁的粘附和聚集体的产生， 表面均匀地涂覆有树脂细颗粒可以以高产率生产。 解决方案：调色剂的制造方法使用旋转搅拌装置，其至少设置有循环装置，温度调节装置和包括双流体喷嘴230的喷射装置。双流体喷嘴230包括液体管 231和空气管232，其中液体管231同轴地插入空气管232中，液体管231和空气管232至少部分地固定，使得管的中心不脱位。 在粉末通道中，调节温度，并且在循环调色剂基础颗粒和树脂细颗粒的同时，从双流体喷嘴230以固定速度喷涂用于辅助粘合的液体，以在调色剂基础颗粒表面上形成膜。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010020172A

公开(公告)日：2010-01-28

申请号：JP2008181759

申请日：2008-07-11

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YOSHIOKA NOBUYUKI ,  IWAMATSU TADASHI ,  MUTO YOSHINORI ,  HIRAKAWA HIROYUKI ,  HARA TAKASHI ,  KANDA HIROFUMI ,  ICHII CHIKAO ,  KAMOTO TAKANORI ,  WADA OSAMU

IPC: G03G9/113 ,  G03G9/08 ,  G03G9/10

Abstract: PROBLEM TO BE SOLVED: To solve the following problems: in an environment in which a two-component developer is subjected to thermal and mechanical stress with time and in the main unit of a copying machine, fluidity of the developer deteriorates significantly and density unevenness of an output image occurs; and in printing on many sheets, the fluidity of the developer deteriorates, density unevenness due to insufficient conveyance occurs and an obtained output image degrades significantly. SOLUTION: There is provided an electrophotographic two-component developer satisfying an expression (1): 10.4≤log((C/B)/(A×T))≤17.9, wherein A represents the wax material content (wt.%) of a toner therein; T represents toner concentration (wt.%) of the two-component developer; B represents volume resistance (Ωcm) of a carrier core material; and C represents a volume resistance (Ωcm) of a carrier. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题为了解决以下问题：在双组分显影剂随时间受到热应力和机械应力的环境中，在复印机的主单元中，显影剂的流动性显着劣化，并且 出现输出图像的浓度不均匀; 并且在许多片材上印刷时，显影剂的流动性劣化，由于不充分的输送而导致的浓度不均匀性发生，并且获得的输出图像显着劣化。 解决方案：提供满足表达式（1）：10.4≤log（（C / B）/（A×T））≤17.9的电子照相双组分显影剂，其中A表示蜡材料含量（wt。 ％）的调色剂; T表示双组分显影剂的调色剂浓度（重量％）; B表示载体芯材的体积电阻（Ωcm）; C表示载体的体积电阻（Ωcm）。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009258384A

公开(公告)日：2009-11-05

申请号：JP2008107186

申请日：2008-04-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HIRAKAWA HIROYUKI ,  IWAMATSU TADASHI ,  YOSHIOKA NOBUYUKI ,  MUTO YOSHINORI ,  HARA TAKASHI ,  KAMOTO TAKANORI ,  WADA OSAMU

IPC: G03G9/113 ,  G03G9/10

Abstract: PROBLEM TO BE SOLVED: To provide a carrier capable of improving stability of charging amount of toner and capable of maintaining high quality image formation for a long period of time.
SOLUTION: The carrier 1 includes a cover layer 3 on the surface of core material 2, wherein a shape factor (SF-1) of the core material 2 is ≥119, a proportion of the shape factor of the core material after forming the cover layer 3 to the shape factor of the core material 2 is in the range of ≥90% to ≤100%, a bridge resistance value upon agitation test is lowered by a change amount in the range of 0 to ≤1/10 with respect to the initial value under an electric field of 1,000 V/cm and, as the result, the high quality image formation can be maintained over a long period of time.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供能够提高调色剂的充电量的稳定性并能够长时间保持高质量图像形成的载体。 解决方案：载体1在芯材2的表面上包括覆盖层3，其中芯材2的形状因子（SF-1）≥119，芯材的形状因子的比例在 将覆盖层3形成为芯材2的形状因子的范围在≥90％〜≤100％的范围内，搅拌试验时的桥电阻值降低0〜≤1/ 10的范围内的变化量 相对于1000V / cm的电场下的初始值，结果可以长时间保持高质量的图像形成。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008298891A

公开(公告)日：2008-12-11

申请号：JP2007142621

申请日：2007-05-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAMOTO TAKANORI ,  IWAMATSU TADASHI ,  YOSHIOKA NOBUYUKI ,  MUTO YOSHINORI ,  HIRAKAWA HIROYUKI ,  HARA TAKASHI

IPC: G03G9/097 ,  G03G9/107 ,  G03G9/113 ,  G03G15/08

CPC classification number: G03G9/1075 ,  G03G9/1131 ,  G03G9/1136

Abstract: PROBLEM TO BE SOLVED: To obtain a carrier that can suppress decrease in a charge amount of toner containing at least a binder resin and an organic colorant, and that is stable and capable of forming a high definition image of high picture quality with extremely little image defect such as fog. SOLUTION: The carrier 2 is to be used for a two-component developer containing the carrier 2 and a toner 3 containing at least a binder resin and an organic colorant. The carrier 2 has a coating layer 2b on the surface of a core material 2a, the coating layer containing conductive particles and a charge control agent that controls charges in the same polarity as the charges controlled by a charge control agent included in the toner 3. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了获得能够抑制至少含有粘合剂树脂和有机着色剂的调色剂的电荷量的降低的载体，并且是稳定的并且能够形成具有高图像质量的高清晰度图像的载体 极少的图像缺陷如雾。 解决方案：载体2用于含有载体2的双组分显影剂和至少含有粘合剂树脂和有机着色剂的调色剂3。 载体2在芯材2a的表面上具有涂层2b，涂层含有导电颗粒和电荷控制剂，其控制与由调色剂3中包含的电荷控制剂控制的电荷相同极性的电荷。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007072144A

公开(公告)日：2007-03-22

申请号：JP2005258754

申请日：2005-09-07

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI ,  IWAMATSU TADASHI

IPC: G03G9/113 ,  G03G9/10

Abstract: PROBLEM TO BE SOLVED: To achieve a longer lifetime with a simple configuration and to maintain higher image quality for a long period in high speed stirring and high speed developing.
SOLUTION: The two-component developer is composed by using a magnetic carrier 5A including a single core material 5AA formed by using microballoons etc., a resin binder 5AB dispersed with magnetic powder 5AC formed by using any among at least magnetite, hematite, ferrite, iron powder, etc., and a resin binder 5AB covering the surface of the core material 5AA.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：以简单的配置实现更长的使用寿命，并在高速搅拌和高速显影中长时间保持较高的图像质量。 解决方案：双组分显影剂通过使用包括通过使用微球等形成的单芯材料5AA的磁性载体5A构成，分散有由至少磁铁矿，赤铁矿中的任何一种形成的磁性粉末5AC的树脂粘合剂5AB ，铁素体，铁粉等，以及覆盖芯材5AA的表面的树脂粘合剂5AB。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2012173413A

公开(公告)日：2012-09-10

申请号：JP2011033492

申请日：2011-02-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA ,  MUTO YOSHINORI ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a capsule toner improving hot-offset resistance without impairing blocking resistance, and to provide a manufacturing method thereof.SOLUTION: The manufacturing method of capsule toners includes steps for: sticking microparticle mixtures comprising binding resin microparticles, and polar wax and nonpolar wax microparticles, to the surfaces of toner base particles including a binding resin, polar or nonpolar wax and colorant; spraying spray liquid to the microparticle mixtures-stuck toner base particles under fluidization and plasticizing them; and turning the microparticle mixtures of the microparticle mixtures-stuck toner base particles into a film by a loaded impulse force.

Abstract translation: 解决问题的方法：提供一种胶囊调色剂提高耐热胶印性而不损害抗粘连性，并提供其制造方法。 胶囊调色剂的制造方法包括以下步骤：将包含粘合树脂微粒和极性蜡和非极性蜡微粒的微粒混合物粘附到包括粘合树脂，极性或非极性蜡和着色剂的调色剂基础颗粒的表面; 将喷雾液体喷洒到微粒混合物上，使其在流化和粘合下使其粘附调色剂基础颗粒; 并通过加载的冲击力将微粒混合物的微粒混合物 - 将调色剂基础颗粒粘附到膜中。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012088440A

公开(公告)日：2012-05-10

申请号：JP2010233750

申请日：2010-10-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  MUTO YOSHINORI ,  HARA TAKASHI

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097

Abstract: PROBLEM TO BE SOLVED: To provide a production method of a capsule toner capable of preventing contamination of a fixing roller caused by cold offset and hot offset partially occurring, and to provide a toner obtained by the method and a two-component developer containing the toner and a carrier.SOLUTION: The production method of a capsule toner includes steps of: mixing, melting, and kneading a toner material containing at least a binder resin, a colorant, a charge controlling agent, and a first release agent to obtain a kneaded material, and subsequently cooling, solidifying, and pulverizing the kneaded material to form toner base particles; and depositing mixed resin fine particles containing resin fine particles and a second release agent having a melting point lower than that of the first release agent by 10 to 30°C on the surfaces of the toner base particles to obtain composite toner particles, and forming films of the mixed resin fine particles to form a capsule toner in which the surface of the toner base particle is coated with a resin layer comprising the mixed resin fine particles.

Abstract translation: 解决的问题：提供一种胶囊调色剂的制造方法，其能够防止由冷偏移和热偏移部分地发生的定影辊的污染，并且提供通过该方法获得的调色剂和双组分显影剂 含有调色剂和载体。 胶囊调色剂的制造方法包括以下步骤：混合，熔融和捏合至少含有粘合剂树脂，着色剂，电荷控制剂和第一脱模剂的调色剂材料，以获得捏合材料 然后冷却，固化和粉碎捏合的材料以形成调色剂基础颗粒; 并且在调色剂基础颗粒的表面上沉积含有树脂微粒和熔点低于第一脱模剂的第二脱模剂的混合树脂微粒，以获得复合调色剂颗粒，并形成膜 的混合树脂细颗粒以形成其中调色剂基础颗粒的表面涂覆有包含混合树脂细颗粒的树脂层的胶囊调色剂。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012083614A

公开(公告)日：2012-04-26

申请号：JP2010230787

申请日：2010-10-13

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI ,  HARA TAKASHI

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/097 ,  G03G9/10

Abstract: PROBLEM TO BE SOLVED: To provide a production method of a capsule toner, by which a capsule toner having a release agent layer and a resin coating layer successively formed on the surface of a toner base particle in which bleed out of the release agent is prevented and aggregation does not occur, can be produced with superior productivity, and to provide a toner obtained by the method, and a two-component developer containing the toner and a carrier.SOLUTION: The production method of a capsule toner comprises steps of: forming release agent-coated toner particles having a release agent layer comprising release agent particles on the surface of the toner base particle; forming composite toner particles comprising the release agent-coated toner particles and resin fine particles adhering to the surfaces of the toner particles; and forming a capsule toner comprising the release agent-coated toner particles the surface of which are coated with resin fine particles, by subjecting the composite toner particles to a stirring treatment while spraying a volatile liquid to the surfaces of the composite toner particles under the condition of a temperature equal to or lower than the glass transition temperature of the binder resin in the toner base particles and equal to or lower than the on-set temperature of the release agent particles.

Abstract translation: 要解决的问题：提供一种胶囊调色剂的制造方法，通过该胶囊调色剂具有脱模剂层和树脂涂层的胶囊调色剂，其依次形成在调色剂基础颗粒的表面上，从而释放出 防止聚合，并且不会发生聚集，可以以优异的生产率生产，并且提供通过该方法获得的调色剂和含有调色剂和载体的双组分显影剂。 胶囊调色剂的制备方法包括以下步骤：在调色剂基础颗粒的表面上形成具有包含脱模剂颗粒的脱模剂层的脱模剂涂覆的调色剂颗粒; 形成复合调色剂颗粒，其包含附着在调色剂颗粒表面上的脱模剂调色剂颗粒和树脂细颗粒; 以及通过在复合调色剂颗粒在条件下将挥发性液体喷雾到复合调色剂颗粒的表面的同时，使复合调色剂颗粒进行搅拌处理，形成包含其表面涂覆有树脂细颗粒的脱模剂调色剂颗粒的胶囊调色剂 的温度等于或低于调色剂基础颗粒中的粘合剂树脂的玻璃化转变温度，并且等于或低于脱模剂颗粒的设定温度。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011191704A

公开(公告)日：2011-09-29

申请号：JP2010059994

申请日：2010-03-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  MUTO YOSHINORI ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a capsule toner having a release agent layer on the surface of a toner base particle and further having a resin coating layer outside the release agent layer, having excellent blocking resistance, suppressing occurrence of high temperature offset and having a wide fixable temperature range, and to provide a capsule toner and a developer.
SOLUTION: The method for manufacturing a capsule toner includes: a step of forming release agent-coated toner base particles having a release agent layer on the surface of a toner base particle, by imparting mechanical impact force to toner base particles in a fluidized state while spraying a release agent solution prepared by dissolving the release agent in a solvent; and a step of forming a resin coating layer on the surface of the release agent-coated toner base particle by fluidizing the release agent-coated toner base particles and resin fine particles and imparting mechanical impact force to the fluidized particles.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决方案：提供一种制造在调色剂基础颗粒的表面上具有脱模剂层的胶囊调色剂的方法，并且在脱模剂层外还具有树脂涂层，具有优异的抗粘连性，抑制发生 的高温偏移并且具有宽的可固定温度范围，并且提供胶囊调色剂和显影剂。 胶囊调色剂的制造方法包括：在调色剂基础颗粒的表面上形成具有脱模剂层的脱模剂涂布的调色剂基础颗粒的步骤，通过在调色剂基础颗粒中赋予机械冲击力 同时喷洒通过将脱模剂溶解在溶剂中制备的脱模剂溶液; 以及通过使脱模剂涂覆的调色剂基础颗粒和树脂细颗粒流化并赋予流化颗粒机械冲击力，在脱模剂涂覆的调色剂基础颗粒的表面上形成树脂涂层的步骤。 版权所有（C）2011，JPO＆INPIT